Outdoor Enclosure Screen Question

I'm wanting to build my Bearded Dragon an outdoor enclosure with a wood frame, bottom, and screens all around. My question is, if the screen is fine enough to keep out lightning bugs, would it filter out a large amount of uv from the sun? Or are lightning bugs not that large of a threat in an outdoor enclosure? I wouldn't want my Beardie to eat one, but I also would want him to get a good amount of uv.

Racoons, skunks, possums, generally what you'd expect to find in Kansas. I get what you're saying: outdoor enclosures are generally used for several hours a day so the lizard can get authentic UV, right?

If you are referring to the circular wire, don't. It is too big of an opening and will allow snakes or rodents to enter. I would use nothing larger than 1/4 inch hardware cloth. And I would suggest, unless the cage needs to be moveable to make the bottom out of the same hardware cloth.